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How to Dev - Example: Get access token via refresh token

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To get access token using the refresh token acquired during authentication the following REST API is available:

POST https://www.snap4city.org/auth/realms/master/protocol/openid-connect/token

Content-Type: application/x-www-form-urlencoded

grant_type=refresh_token&client_id=xxx&refresh_token=…refresh token…

 

Return 200 if the refresh token is valid, access token is returned

{

    "access_token": "…",

    "expires_in": 1500,

    "refresh_expires_in": 2073600,

    "refresh_token": "…",

    "token_type": "bearer",

    "not-before-policy": 0,

    "session_state": "…"

}

 

Return 400 if the refresh token is not valid or the client_id is not present

{

    "error": "invalid_grant",

    "error_description": "Invalid refresh token"

}

Note: each authentication request creates a new session on keycloak, it is better to use the refresh token to create a new access token, it is more secure (no need to store user name and password)

 

 

 

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  • Notice: Trying to get property of non-object in user_is_logged_in() (line 1576 of /var/www/html/drupal/modules/user/user.module).
  • Notice: Trying to get property of non-object in user_is_logged_in() (line 1576 of /var/www/html/drupal/modules/user/user.module).
  • Notice: Trying to get property of non-object in og_field_access() (line 578 of /var/www/html/drupal/sites/default/modules/og/og.module).
  • Notice: Trying to get property of non-object in user_access() (line 806 of /var/www/html/drupal/modules/user/user.module).
  • Notice: Trying to get property of non-object in user_access() (line 818 of /var/www/html/drupal/modules/user/user.module).
  • Notice: Trying to get property of non-object in user_access() (line 819 of /var/www/html/drupal/modules/user/user.module).
  • Notice: Trying to get property of non-object in user_access() (line 825 of /var/www/html/drupal/modules/user/user.module).
  • Notice: Trying to get property of non-object in user_access() (line 828 of /var/www/html/drupal/modules/user/user.module).
  • Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/drupal/includes/common.inc:2791) in drupal_send_headers() (line 1499 of /var/www/html/drupal/includes/bootstrap.inc).
  • Error: __clone method called on non-object in og_user_access_entity() (line 2249 of /var/www/html/drupal/sites/default/modules/og/og.module).
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